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class="post-meta-separator">|</span><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/Java/">Java</a></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-wordcount"><i class="far fa-file-word fa-fw post-meta-icon"></i><span class="post-meta-label">字数总计:</span><span class="word-count">937</span><span class="post-meta-separator">|</span><i class="far fa-clock fa-fw post-meta-icon"></i><span class="post-meta-label">阅读时长:</span><span>4分钟</span></span><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="SpringBoot自定义配置，filter，interceptor"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h1 id="1-自定义配置属性绑定"><a href="#1-自定义配置属性绑定" class="headerlink" title="1. 自定义配置属性绑定"></a>1. 自定义配置属性绑定</h1><blockquote>
<p>一个类用来绑定属性（@Data + @ConfigurationProperties(prefix = “xxxx”)）</p>
<p>一个类注入属性使用 （@Configuration + @EnableConfigurationProperties(Xxxx.class)）</p>
</blockquote>
<h2 id="定义配置"><a href="#定义配置" class="headerlink" title="定义配置"></a>定义配置</h2><figure class="highlight yml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="attr">mo:</span></span><br><span class="line">  <span class="attr">test:</span></span><br><span class="line">    <span class="attr">label:</span> <span class="string">user-config</span></span><br><span class="line">    <span class="attr">time:</span> <span class="number">2023-04-02</span></span><br></pre></td></tr></table></figure>
<h2 id="定义属性类，绑定属性"><a href="#定义属性类，绑定属性" class="headerlink" title="定义属性类，绑定属性"></a>定义属性类，绑定属性</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Data</span></span><br><span class="line"><span class="meta">@ConfigurationProperties(prefix = &quot;mo.test&quot;)</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">UserProperties</span> &#123;</span><br><span class="line">    <span class="keyword">private</span> String label;</span><br><span class="line">    <span class="keyword">private</span> String time;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="定义使用类，注入属性类"><a href="#定义使用类，注入属性类" class="headerlink" title="定义使用类，注入属性类"></a>定义使用类，注入属性类</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Configuration</span></span><br><span class="line"><span class="meta">@EnableConfigurationProperties(UserProperties.class)</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">UserConfig</span> &#123;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Resource</span></span><br><span class="line">    UserProperties userProperties;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">test</span><span class="params">()</span> &#123;</span><br><span class="line">        System.out.println(userProperties.getLabel());</span><br><span class="line">        System.out.println(userProperties.getTime());</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="测试是否生效"><a href="#测试是否生效" class="headerlink" title="测试是否生效"></a>测试是否生效</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@SpringBootApplication</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">Application</span> &#123;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title function_">main</span><span class="params">(String[] args)</span> &#123;</span><br><span class="line">        <span class="type">ConfigurableApplicationContext</span> <span class="variable">run</span> <span class="operator">=</span> SpringApplication.run(Web3Application.class, args);</span><br><span class="line">        <span class="type">UserConfig</span> <span class="variable">userConfig</span> <span class="operator">=</span> (UserConfig) run.getBean(<span class="string">&quot;userConfig&quot;</span>);</span><br><span class="line">        userConfig.test();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h1 id="2-自定义FIlter"><a href="#2-自定义FIlter" class="headerlink" title="2. 自定义FIlter"></a>2. 自定义FIlter</h1><h2 id="开启功能"><a href="#开启功能" class="headerlink" title="开启功能"></a>开启功能</h2><blockquote>
<p>主启动类添加 <code>@ServletComponentScan</code>注解来开启功能</p>
<p>注意这个好像是运行在tomcat服务中的，并不是运行在spring容器中（猜的，有待学习，hhh）</p>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@ServletComponentScan</span></span><br><span class="line"><span class="meta">@SpringBootApplication</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">FilterTestApplication</span> &#123;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title function_">main</span><span class="params">(String[] args)</span> &#123;</span><br><span class="line">        SpringApplication.run(FilterTestApplication.class, args);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="自定义Filter"><a href="#自定义Filter" class="headerlink" title="自定义Filter"></a>自定义Filter</h2><blockquote>
<p>关键是重写doFilter方法，注意ServletRequest，ServletResponse可以强转为HttpServletRequest，HttpServletResponse</p>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> org.springframework.core.annotation.Order;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> javax.servlet.*;</span><br><span class="line"><span class="keyword">import</span> javax.servlet.annotation.WebFilter;</span><br><span class="line"><span class="keyword">import</span> java.io.IOException;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@Order</span>(1) 数字越小Filter越靠前</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@WebFilter</span>(urlPatterns = &quot;/*&quot;)</span></span><br><span class="line"><span class="comment"> * - urlPatterns 表示要拦截的路径，如&quot;/login&quot;,&quot;/query/*&quot;,&quot;/query/*&quot;</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@Order(1)</span></span><br><span class="line"><span class="meta">@WebFilter(urlPatterns = &quot;/*&quot;)</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">UserFilter</span> <span class="keyword">implements</span> <span class="title class_">Filter</span> &#123;</span><br><span class="line">    <span class="comment">/**</span></span><br><span class="line"><span class="comment">     * 初始化时调用</span></span><br><span class="line"><span class="comment">     */</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">init</span><span class="params">(FilterConfig filterConfig)</span> <span class="keyword">throws</span> ServletException &#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;========================= Filter init 1 ===========================&quot;</span>);</span><br><span class="line">        Filter.<span class="built_in">super</span>.init(filterConfig);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">doFilter</span><span class="params">(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)</span> <span class="keyword">throws</span> IOException, ServletException &#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;========================= Filter doFilter 1 ===========================&quot;</span>);</span><br><span class="line"></span><br><span class="line">        <span class="comment">// 获取请求头 =======================================</span></span><br><span class="line">        <span class="comment">// HttpServletRequest request = (HttpServletRequest) servletRequest;</span></span><br><span class="line">        <span class="comment">// String authorization = request.getHeader(&quot;Authorization&quot;);</span></span><br><span class="line">        <span class="comment">// System.out.println(authorization);</span></span><br><span class="line"></span><br><span class="line">        <span class="comment">// 写出数据 =======================================</span></span><br><span class="line">        <span class="comment">// HashMap&lt;String, Object&gt; map = new HashMap&lt;&gt;();</span></span><br><span class="line">        <span class="comment">// map.put(&quot;name&quot;, &quot;hello world&quot;);</span></span><br><span class="line">        <span class="comment">//  map.put(&quot;gender&quot;, 18);</span></span><br><span class="line">        <span class="comment">// HttpServletResponse response = (HttpServletResponse) servletResponse;</span></span><br><span class="line">        <span class="comment">// response.setContentType(&quot;application/json;charset=utf-8&quot;);</span></span><br><span class="line">        <span class="comment">// response.getWriter().write(map.toString());</span></span><br><span class="line">        <span class="comment">// return;</span></span><br><span class="line"></span><br><span class="line">        <span class="comment">// 放行操作，如果不写，则不会返回结果</span></span><br><span class="line">        filterChain.doFilter(servletRequest, servletResponse);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="comment">/**</span></span><br><span class="line"><span class="comment">     * 销毁时调用</span></span><br><span class="line"><span class="comment">     */</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">destroy</span><span class="params">()</span> &#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;========================= Filter destroy 1 ===========================&quot;</span>);</span><br><span class="line">        Filter.<span class="built_in">super</span>.destroy();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="使用示例"><a href="#使用示例" class="headerlink" title="使用示例"></a>使用示例</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@WebFilter(urlPatterns = &quot;/*&quot;)</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">LoginFilter</span> <span class="keyword">implements</span> <span class="title class_">Filter</span> &#123;</span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">doFilter</span><span class="params">(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)</span> &#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;===================================================&quot;</span>);</span><br><span class="line">        <span class="type">HttpServletRequest</span> <span class="variable">httpServletRequest</span> <span class="operator">=</span> (HttpServletRequest) servletRequest;</span><br><span class="line">        <span class="type">String</span> <span class="variable">url</span> <span class="operator">=</span> httpServletRequest.getRequestURI().toString();</span><br><span class="line">        <span class="type">String</span> <span class="variable">authorization</span> <span class="operator">=</span> httpServletRequest.getHeader(<span class="string">&quot;Authorization&quot;</span>);</span><br><span class="line"></span><br><span class="line">        <span class="comment">// 放行登录请求</span></span><br><span class="line">        <span class="keyword">if</span> (url.contains(<span class="string">&quot;/login&quot;</span>)) &#123;</span><br><span class="line">            filterChain.doFilter(servletRequest, servletResponse);</span><br><span class="line">            <span class="keyword">return</span>;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="comment">// 是否有token，有则放行，没有直接返回结果</span></span><br><span class="line">        <span class="keyword">if</span> (<span class="literal">null</span> == authorization) &#123;</span><br><span class="line">            <span class="type">HttpServletResponse</span> <span class="variable">response</span> <span class="operator">=</span> (HttpServletResponse) servletResponse;</span><br><span class="line">            response.setContentType(<span class="string">&quot;application/json;charset=utf-8&quot;</span>);</span><br><span class="line">            response.getWriter().write(JSONObject.toJSONString(Result.error(<span class="string">&quot;当前账号未登录&quot;</span>)));</span><br><span class="line">            <span class="keyword">return</span>;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        filterChain.doFilter(servletRequest, servletResponse);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h1 id="3-自定义拦截器"><a href="#3-自定义拦截器" class="headerlink" title="3. 自定义拦截器"></a>3. 自定义拦截器</h1><blockquote>
<p>拦截器是spring提供的功能，所以是运行在容器中的</p>
</blockquote>
<h2 id="准备拦截器"><a href="#准备拦截器" class="headerlink" title="准备拦截器"></a>准备拦截器</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 实现 HandlerInterceptor 接口来定义拦截器</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@Component</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">MyInterceptor</span> <span class="keyword">implements</span> <span class="title class_">HandlerInterceptor</span> &#123;</span><br><span class="line">    <span class="comment">// 拦截前操作，使用最多，返回true放行，false不放行</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="type">boolean</span> <span class="title function_">preHandle</span><span class="params">(HttpServletRequest request, HttpServletResponse response, Object handler)</span> <span class="keyword">throws</span> Exception &#123;</span><br><span class="line">        <span class="keyword">return</span> HandlerInterceptor.<span class="built_in">super</span>.preHandle(request, response, handler);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="comment">// 拦截后操作</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">postHandle</span><span class="params">(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)</span> <span class="keyword">throws</span> Exception &#123;</span><br><span class="line">        HandlerInterceptor.<span class="built_in">super</span>.postHandle(request, response, handler, modelAndView);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="comment">// 完成后的操作</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">afterCompletion</span><span class="params">(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)</span> <span class="keyword">throws</span> Exception &#123;</span><br><span class="line">        HandlerInterceptor.<span class="built_in">super</span>.afterCompletion(request, response, handler, ex);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="拦截器配置"><a href="#拦截器配置" class="headerlink" title="拦截器配置"></a>拦截器配置</h2><blockquote>
<p>注意跟FIlter的区别，路径拦截全部是两个*号的</p>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Configuration</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">InterceptorConfig</span> <span class="keyword">implements</span> <span class="title class_">WebMvcConfigurer</span> &#123;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Resource</span></span><br><span class="line">    <span class="keyword">private</span> MyInterceptor myInterceptor;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> <span class="title function_">addInterceptors</span><span class="params">(InterceptorRegistry registry)</span> &#123;</span><br><span class="line">        registry.addInterceptor(myInterceptor)</span><br><span class="line">                .addPathPatterns(<span class="string">&quot;/**&quot;</span>)</span><br><span class="line">                .excludePathPatterns(<span class="string">&quot;/login&quot;</span>);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="使用示例-1"><a href="#使用示例-1" class="headerlink" title="使用示例"></a>使用示例</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Component</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">LoginInterceptor</span> <span class="keyword">implements</span> <span class="title class_">HandlerInterceptor</span> &#123;</span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> <span class="type">boolean</span> <span class="title function_">preHandle</span><span class="params">(HttpServletRequest request, HttpServletResponse response, Object handler)</span> <span class="keyword">throws</span> Exception &#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;LoginInterceptor 生效了&quot;</span>);</span><br><span class="line">        </span><br><span class="line">        Enumeration&lt;String&gt; headerNames = request.getHeaderNames();</span><br><span class="line">        <span class="keyword">while</span> (headerNames.hasMoreElements()) &#123;</span><br><span class="line">            System.out.println(headerNames.nextElement());</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="type">String</span> <span class="variable">token</span> <span class="operator">=</span> request.getHeader(<span class="string">&quot;Authorization&quot;</span>);</span><br><span class="line">        <span class="keyword">if</span> (token == <span class="literal">null</span>) &#123;</span><br><span class="line">            <span class="type">String</span> <span class="variable">res</span> <span class="operator">=</span> JSONObject.toJSONString(Result.error(<span class="string">&quot;当前账号未登录&quot;</span>));</span><br><span class="line">            response.setContentType(<span class="string">&quot;application/json;charset=utf-8&quot;</span>);</span><br><span class="line">            response.getWriter().write(res);</span><br><span class="line">            <span class="keyword">return</span> <span class="literal">false</span>;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="keyword">try</span> &#123;</span><br><span class="line">            <span class="type">Claims</span> <span class="variable">claims</span> <span class="operator">=</span> JWTUtils.validToken(token);</span><br><span class="line">        &#125; <span class="keyword">catch</span> (Exception e) &#123;</span><br><span class="line">            e.printStackTrace();</span><br><span class="line">            <span class="type">String</span> <span class="variable">res</span> <span class="operator">=</span> JSONObject.toJSONString(Result.error(<span class="string">&quot;当前账号未登录&quot;</span>));</span><br><span class="line">            response.setContentType(<span class="string">&quot;application/json;charset=utf-8&quot;</span>);</span><br><span class="line">            response.getWriter().write(res);</span><br><span class="line">            <span class="keyword">return</span> <span class="literal">false</span>;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="keyword">return</span> <span class="literal">true</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</article><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/Java/">Java</a><a class="post-meta__tags" href="/tags/SpringBoot/">SpringBoot</a></div><div class="post_share"></div></div><nav class="pagination-post" id="pagination"><div class="prev-post pull-left"><a href="/blog/java/100%20SpringBoot%E5%85%81%E8%AE%B8%E8%B7%A8%E5%9F%9F/"><img class="prev-cover" src= "" data-lazy-src="/images/spring.jpeg" onerror="onerror=null;src='/img/404.jpg'" alt="cover of previous post"><div class="pagination-info"><div class="label">上一篇</div><div class="prev_info">SpringBoot允许跨域</div></div></a></div><div class="next-post pull-right"><a href="/blog/java/102%20%E5%BC%82%E5%B8%B8%E5%A4%84%E7%90%86/"><img class="next-cover" src= "" data-lazy-src="/images/spring.jpeg" onerror="onerror=null;src='/img/404.jpg'" alt="cover of next post"><div class="pagination-info"><div class="label">下一篇</div><div class="next_info">SpringBoot异常处理</div></div></a></div></nav><div 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